Figure 2 Detection by genome-wide mapping and detailed analysis by fine-structure mapping of the Chromosome XIV Htg QTL. a, Calculated probability of random segregation (y-axis) for 3444 markers in a whole-genome allelic variation scan of 19 Htg⁺ segregants from YJM789 x S96, shown here for chromosome XIV. A region with low probability of random segregation was identified between 434194 and 485856; b, Relative risk plot representing the fine-structure map of the low probability region. With 28 markers and 104 Htg⁺ segregants the recombination breakpoints defining a high relative risk interval were placed to within 32 Kb (445003 to 477059).

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